The flow in the secondary air system of a gas turbine engine passes over numerous oil supply and scavenge pipes and a fracture in such a pipe will cause a jet of oil to be ejected as a spray. This spray will disperse in the surrounding flow. Accurate and reliable numerical modelling of these sprays presents significant problems due in part to their complexity, but also the lack of experimental data available for model validation. This paper describes the design, manufacture, testing and results from an experimental test rig aimed at spray characterisation. The sprays considered were produced through a round sharp edged nozzle with a 0.57 mm diameter and a length to diameter ratio of 1.61. The spray was introduced normal to the cross flow. Phase Doppler Anemometry was used to determine droplet size and velocity for Weber numbers within the range of 13 < Weg < 580 and Momentum Flux Ratio within the range of 0.8 < q < 136, resulting in 19 different spray fields. Each of these spray fields has been characterised at three axial locations. Contours of droplet size, mass flux distribution, axial droplet velocity and transverse droplet velocity are presented. In addition, a pulsed laser sheet and CCD camera were used to analyse the jet behaviour in terms of break up length and jet trajectory.
Skip Nav Destination
ASME Turbo Expo 2009: Power for Land, Sea, and Air
June 8–12, 2009
Orlando, Florida, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4882-1
PROCEEDINGS PAPER
An Experimental Study of Sprays in Cross Flow Representative of Gas Turbine Engine Secondary Air Systems
N. J. Regan,
N. J. Regan
University of Sussex, Brighton, UK
Search for other works by this author on:
N. R. Atkins,
N. R. Atkins
University of Sussex, Brighton, UK
Search for other works by this author on:
P. R. N. Childs,
P. R. N. Childs
University of Sussex, Brighton, UK
Search for other works by this author on:
P. S. Hutcheson,
P. S. Hutcheson
University of Surrey, Guildford, UK
Search for other works by this author on:
K. J. Hart
K. J. Hart
University of Hertfordshire, Hatfield, UK
Search for other works by this author on:
N. J. Regan
University of Sussex, Brighton, UK
N. R. Atkins
University of Sussex, Brighton, UK
C. A. Long
University of Sussex, Brighton, UK
P. R. N. Childs
University of Sussex, Brighton, UK
P. S. Hutcheson
University of Surrey, Guildford, UK
K. J. Hart
University of Hertfordshire, Hatfield, UK
Paper No:
GT2009-59709, pp. 133-143; 11 pages
Published Online:
February 16, 2010
Citation
Regan, NJ, Atkins, NR, Long, CA, Childs, PRN, Hutcheson, PS, & Hart, KJ. "An Experimental Study of Sprays in Cross Flow Representative of Gas Turbine Engine Secondary Air Systems." Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea, and Air. Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors. Orlando, Florida, USA. June 8–12, 2009. pp. 133-143. ASME. https://doi.org/10.1115/GT2009-59709
Download citation file:
15
Views
Related Proceedings Papers
Related Articles
Key Parameters for the Performance of Impaction-Pin Nozzles Used in
Inlet Fogging of Gas Turbine Engines
J. Eng. Gas Turbines Power (April,2007)
Microelectromechanical System-Based Evaporative Thermal Management of High Heat Flux Electronics
J. Heat Transfer (January,2005)
Liquid Fuel Placement and Mixing of Generic Aeroengine Premix Module at Different Operating Conditions
J. Eng. Gas Turbines Power (October,2003)
Related Chapters
Research Protocol for Approval of Drift-Reducing Adjuvants for Dicamba in Brazil
Pesticide Formulation and Delivery Systems: 42nd Volume, Building the Future of Agrochemicals for 2030 and Beyond
Straight-Stream Nozzle Models to Support Aerial Applications
Pesticide Formulation and Delivery Systems: 42nd Volume, Building the Future of Agrochemicals for 2030 and Beyond
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3